National Institute for Materials Science (NIMS)
Goddard Space Flight Center, National Aeronautics and Space Administration (GSFC/NASA)
Tokyo Institute of Technology
出版者
宇宙航空研究開発機構宇宙科学研究所 (JAXA)(ISAS)
出版者（英）
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)
雑誌名
宇宙利用シンポジウム: 第27回: 平成22年度
雑誌名(英)
Space Utilization Research, Vol. 27 2011: Proceedings of The Twenty-seventh Space Utilization Symposium
The Twenty-seventh Space Utilization Symposium (January 24-25, 2011. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan
抄録（英）
Adiabatic Demagnetization Refrigeration (ADR) does not use working fluids contrary to conventional refrigerators that make use of the fluid density difference, which leads to superiority of the ADR under the weak gravity condition. We developed a continuous ADR system to provide constant cooling temperatures ca. 0.1 K. The system consists of four stages of magnetic materials and magnets cascaded with heat switches. A G-M cycle cooler with a 100 V compressor unit is used to cool the ADR and cryostat shieldings. Cooling tests with Transition Edge Sensor on the ground showed that the ADR provided continuous cooling temperatures between 105 mK and 120 mK and it successfully operated the TES. The ADR could provide stable temperature under the weak gravity, however, for the experiment of solid helium, the ADR could not achieve below 1K keeping with continuous cycle. This is the reason that the ADR did not have any thermal anchor like 1 K pot. We have been considered a new continuous ADR system which had 5 stages. This ADR will provide two continuous temperatures, 0.1 K and 1-2 K, by using with 3 stages and 2 stages continuous Carnot cycle, respectively.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
宇宙用連続型ADRシステムの汎用化
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